- Extension
- .gsm
- .wv
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- European Telecommunications Standards Institute (ETSI)
- WavPack
- Description
- A lossy file format used to compress speech in Global Standard for Mobile (GSM) telecommunications. It is very effective for reducing audio file size. However, encoding and decoding audio signals severally is discouraged as the final product will have a lot of noise. Popular with some voice mail software but it is CPU intensive.
- Audio file compressed using WavPack Hybrid Lossless Compression; supports both lossy and lossless compression, which produces high-quality compressed files; the compression ratio is typically between 30% and 70%.
- MIME Type
- audio/x-gsm
- audio/x-wavpack
